For comparison, in 2008 Cena & Orton only had about 15 matches together. By comparison, in 2009 they'd done at least 65 matches.

Here is the person who was wrestling in last match
at each event from WWE 2008 (for dark matches, the match that was last
televised is credited as the main event, if ECW was taped after
RAW/SMACKDOWN! - only the RAW/SMACKDOWN! main event was counted):